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written by Asma Khalid, Aleena Tasneem Khan, and Muhammad Sabieh Anwar
published by the LUMS School of Science and Engineering
In this experiment students use XRF spectroscopy to analyze a sample's elemental composition. From the characteristic X-ray energies, Moseley's Law, a proof of the existence of the atomic number, is verified. The atomic number increases in regular steps with an increase in the characteristic X-ray energy. We will use this relationship to find the Rydberg's energy constant and screening coefficient for K X-rays.

This lab is designed for the student to learn to:

1. differentiate between characteristic X-rays and Bremsstrahlung radiations,
2. use characteristic X-rays to identify elements,
3. acquire a spectrum, calibrate it and use it for qualitative (element identification) as well as quantitative (elemental concentration) analysis, and finally,
4. verify Moseley's law and the validity of an atomic number.
Subjects Lab Level Resource Types
Modern Physics
- Atomic Physics
= Spectra
- Nuclear Physics
- Intermediate Undergraduate
- Advanced Undergraduate
- Instructional Material
= Laboratory
Material Category Formats Ratings
- Lab Manual
- application/pdf
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Safety Warnings
Advanced Labs Terms of Use Disclaimer Protective Clothing Must be Worn   High Voltage   Ionizing Radiation  


Format:
application/pdf
Access Rights:
Free access
Restriction:
© 2011 Asma Khalid, Aleena Tasneem Khan and Muhammad Sabieh Anwar
Keywords:
Atomic number, Bremsstrahlung Radiations, Characteristic X-Rays, Moseley’s Law, Rydberg’s energy, Screening coefficient, X-Ray Fluorescence (XRF)
Record Creator:
Metadata instance created February 17, 2012 by Muhammad Sabieh Anwar
Record Updated:
June 6, 2012 by Ramon Torres-Isea
Last Update
when Cataloged:
July 23, 2011
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Khalid, A. Khan, and M. Anwar, (LUMS School of Science and Engineering, Pakistan, Lahore Cantt, 2011), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608).
AJP/PRST-PER
A. Khalid, A. Khan, and M. Anwar, X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number" (LUMS School of Science and Engineering, Pakistan, Lahore Cantt, 2011), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608>.
APA Format
Khalid, A., Khan, A., & Anwar, M. (2011, July 23). X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Retrieved April 21, 2014, from LUMS School of Science and Engineering, Pakistan: http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608
Chicago Format
Khalid, A, A. Khan, and M. Anwar. X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Lahore Cantt: LUMS School of Science and Engineering, Pakistan, July 23, 2011. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608 (accessed 21 April 2014).
MLA Format
Khalid, Asma, Aleena Tasneem Khan, and Muhammad Sabieh Anwar. X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Lahore Cantt: LUMS School of Science and Engineering, Pakistan, 2011. 23 July 2011. 21 Apr. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608>.
BibTeX Export Format
@misc{ Author = "Asma Khalid and Aleena Tasneem Khan and Muhammad Sabieh Anwar", Title = {X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number"}, Publisher = {LUMS School of Science and Engineering, Pakistan}, Volume = {2014}, Number = {21 April 2014}, Month = {July 23, 2011}, Year = {2011} }
Refer Export Format

%A Asma Khalid
%A Aleena Tasneem Khan
%A Muhammad Sabieh Anwar
%T X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number"
%D July 23, 2011
%I LUMS School of Science and Engineering, Pakistan
%C Lahore Cantt
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608
%O application/pdf

EndNote Export Format

%0 Electronic Source
%A Khalid, Asma
%A Khan, Aleena Tasneem
%A Anwar, Muhammad Sabieh
%D July 23, 2011
%T X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number"
%I LUMS School of Science and Engineering, Pakistan
%V 2014
%N 21 April 2014
%8 July 23, 2011
%9 application/pdf
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608


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The AIP Style presented is based on information from the AIP Style Manual.

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